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Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 272a4f8..93345a9 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1839,6 +1839,7 @@ static tree maybe_fold_stmt_indirect (tree expr, tree base, tree offset) { tree t; + bool volatile_p = TREE_THIS_VOLATILE (expr); /* We may well have constructed a double-nested PLUS_EXPR via multiple substitutions. Fold that down to one. Remove NON_LVALUE_EXPRs that @@ -1882,7 +1883,10 @@ maybe_fold_stmt_indirect (tree expr, tree base, tree offset) t = maybe_fold_offset_to_reference (base_addr, offset, TREE_TYPE (expr)); if (t) - return t; + { + TREE_THIS_VOLATILE (t) = volatile_p; + return t; + } } else { |